Trolley-supporting device.



PATEN'TED FEB. 27, 1906.

A. PALMROS. I TROLLEY SUPPORTING DEVICE. APPLIOATION FILED DEG. 2, 1897. RENEWED APR. 11,1900.

2 SHEETSSHEET 1.

lm/Imam PATENTED FEB. 2'7, 1906.

A. PALMROS. TROLLEY SUPPORTING DEVICE.

APPLICATION FILED 17150.2, 1897. RENEWED APR. 11, 1900.

2 smms snnm 2 gvwewhoz 024% UNITED STATES PATENT oEEioE.

ALEXANDER PALMRO S, OF COLUMBUS, OHIO, ASSIGNOR TO JOSEPH A. JEFFREY, OF COLUMBUS, OHIO.

Specification of Letters Patent.

Patented Feb. 27, 1906.

Application filed December 2, 1897. Renewed April 11, 1900. Serial No. 12,451.

To all whom it may concern:

Be it known that I, ALEXANDER PALMROS, a citizen of Finland, residing at Columbus, in the county of Franklin and State of Ohio, have invented certain new and useful Improvements in Trolley-Supporting Devices; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

Figures 1 and 2 are diagrammatic views illustrating various positions into which a current-transmitting device similar to that herein may be adjusted. Fig. 3 is a plan view of a minelocomotive having my improvements applied thereto. Fig. 4 is a side elevation thereof. Fig. 4 illustrates the trolley-supporting pole in section on the lines a: at and y y of Fig. 4. Fig. 5 is a vertical sectional view of the carrier for the trolley-pole. Fig. 6 is a horizontal section on the line 6 6 of Fig. 5. Fig. 7 is an elevation of the tubular holder for the carrier illustrated in Figs. 5 and 6. Fig. 8 is a vertical section of said holder. Figs. 9, 10, and 11 are horizontal sectional views on the lines 9 9, 10 10, and 11 11, respectively, of Fig. 7. Fig. 12 is a diagrammatic view illustrating different positions of the controlling-spring, according to the direction in which the trolley-arm is in-- clined. Fig. 13 is a detail view of the rod by which the controlling-spring is connected to the trolley-pole carrier. Fig. 14 is a sectional view through a portion of the locomotive, illustrating the relative positions of the several parts of my improvements. Fig. 15 is a sectional view on the line 15 15 of Fig. 14.

In the drawings, A indicates an electric locomotive or car as a whole of the form now commonly used in mining work.

One of the objects of the present invention is to provide for the current-transmitting device of such a car a support and controlling mechanism by which the wheel of the current-transmitting device will be pressed laterally against the side of the conducting-wire, so that the transmitter shall be independent of the vertical dimensions of the entry, but shall rather depend upon the space crosswise or lateral of the latter, which is generally ample.

The conductor-wire in such places as mineentries can be arranged in a vertical plane,

which is at all points substantially parallel range of vertical movement and which are therefore apt to be forced upwardly violently against the roof of the mine in case the wheel escapes from the wire.

The invention also relates to other improvements in construction, which will be readily understood from the drawings in connection with the description below.

B indicates the conductor-wire, which is arranged along the track in substantially the manner above indicated.

E indicates the trolley-wheel adapted to run along the wire B. Various forms of supporting arms or poles for sustaining the wheel E in the desired position may be employed in connection with my improvements, which will be hereinafter described. In the drawings I have illustrated said wheel as being supported by a peculiarly-constructed twopart pole or arm F. The body part of this is formed by two strips or bars ff of wood or other nonconducting material, which are placed side by side from end to end, so that although independent of each other they form practically a pole the two parts of which are capable of a slight movement one relatively .to the other. At its outer end the part f is secured to the socket g, having an arm 9, and the part f is secured to a socket h, having an arm h. The trolley E is mounted on the end of a short bar I, which is pivoted at i i to the arms g h, respectively. The part f of the pole at the other end is se cured in a socket 3', having an arm j, and the part f is secured to a socket is, having an arm is.

L is a short stem or upright mounted upon the car and having pivots Z Z, respectively connected to the arms j k.

too

My improvements relate articularly to the devices by which the trol ey-pole is supported, so as to be capable of horizontal movement and to have the force of a spring im arted to it in such a way that the wheelE wi 1 be properly pressed laterally against the conductor B.

The stem or standard L is formed with or secured to a carrier M, the latter being referably tubular or sleeve-like in form. t is mounted upon or in the car-body, the latter having a socket to receive and guide it. As shown, this socket consists of a tubular part or holder N, inserted into a cavity N in the car-body. O is a spring, preferably mounted in a chamber 0 in the car-body, said chamber in the embodiment of my invention herein illustrated extending horizontally from and communicating with the lower portion of the cavity N, and one end of the spring is stationarily fastened at 0, the other end being connected with a stem or shaft P. The spring is connected eccentrically to the said s aft or stem by means of a crank-like arm Q. R is a collar secured to the stem P, this collar being situated in a chamber 1", formed in and opening through the side wall of the holder N and acting to prevent the stem or shaft from dropipin war ly through the lower art of the holder N, and its upper end is a apted to detachably fit in a socket or chamber in the trolleybase M. These two parts engage together in any suitable way, preferably by having the upper portion of the stem or shaft P square or angular in section and having the socket in the carrier M corres ondingly shaped.

It will now be seen t at when the parts are in position the spring 0 will tend to swing the trolley and the wheel in the direction of the wire or conductor B, the result being that a constant pressure is maintained between the latter and the wheel E. Should the latter at any time escape from the wire, its movement under the action of the spring is very limited, as it is almost immediately stopped by the stop R engaging with the shoulder or abut ments at the ends of the opening into the chamber 1" in the holder N.

When it is desired to reverse the trolley that is, to swing it around so that it shall trail toward the opposite end of the carit is simply necessary to grasp the pole F and press it in line away from the wire and against the action of the spring until the arm Q has been carried past the dead-center, whereupon the spring will carry it around until the wheel is ready to engage with and press against the same side of the wire, but in the opposite position in relation to the car.

More or less of the weight of the trolley and the outer portion of its support can be taken by a spring S, applied in any suitable way. In the embodiment of the invention herein illustrated the spring is arranged beg. The stem or shaft projects uptween a hook-like projection on the arm j, which extends beyond the pivot Z from the body of said arm, and a lug projecting laterally from the standard L. This spring S acts to hold the trolley in the proper vertical elevation, while the spring 0, as above described, acts to hold the wheel E laterally against the conductor, and a positive stop, as at T, can be employed to prevent the trolleywheel from drop ing below a predetermined point in event 0' the tendency of the spring to hold it in proper vertical position being overcome.

What I claim is 1. The combination with a car of a current-collecting trolley adapted to bear horizontally or laterally against a conductor, a carrier for the trolley adapted to swing around a vertical axis, and to be reversed from a forward position to a rearward position, a tension-spring, permanently connected to said carrier and arranged substantially as set forth to exert uniform tension on the carrier, whether the carrier is in its forward position or in its rearward position, substantially as set forth.

2. The combination with a car, and a current-collecting trolley adapted to bear horizontally or laterally against a conductor, of a carrier for the trolley adapted to swing around a vertical axis to reverse the trolley from a forward position to a rearward position, a tension-spring having one end stationarily fixed in position and its other end adapted to apply power to and vibrate with said carrier about its axis whereby the trolley will be held with a uniform pressure against the conductor whether it is in its forward position or in its rearward position, substantially as set forth.

3. The combination with an electric car or locomotive, and a. current collecting and transmitting device having a trolley adapted to bear laterally against a conducter, a carrier for said trolley arranged to vibrate horizontally and to reverse the trolley from a forward position to arearward position, a tubular holder for said carrier supported by the car, a tensionspring connected with said carrier to hold the trolley against the conductor whether it is in its forward position or in its rearward position, and an arm movable with the carrier and adapted to limit the movement thereof in either direction, substantially as set forth.

4. The combination with a car and a current-collecting trolley adapted to bear laterally against a conductor, of a carrier for said trolley adapted to vibrate about a vertical axis to reverse the trolley from aforward position to a rearward position, a spring having its ends permanently connected, respectively, to a stationary post or lug and to an arm adapted to vibrate with the carrier, whereby said spring will hold the trolley against the conductor whether the trolley is in its forward position or in its rearward position, and means independent of the spring and conductor, for positively limiting the lateral movement of the trolley under the pull exerted by the spring, substantially as set forth.

5. The combination of a car, a trolley adapted to bear laterally against a conductor, a support for the trolley adapted to be rotated about a vertical axis to reverse the trolley from a forward position to a rearward position, and a spring arranged below the top of the car and connected with said rotary support for holding the trolley with a uniform tension against the conductor whether said trolley is in its forward position or in its rearward position, substantially as set forth.

6. The combination of a car, a carrier mounted on the car to vibrate about a vertical axis and having a short upwardly-extending standard, a trolley adapted to bear laterally against a conductor, a pole for said trolley consisting of two closelyadjacent parallel members, pivotally connected to said standard and trolley, whereby the latter will be held constantly in a horizontal position, and a spring for holding the trolley in proper vertical position, substantially as set forth.

7. The combination of a car, a trolley adapted to bear laterally against a conductor, a carrier for the trolley adapted to rotate about a vertical axis, and having a short upwardly-extending stem or standard, a pole interposed between said standard and trolley and consisting of two closelyadjacent parallel members each independently pivoted to said standard and to the trolley, a spring connected with one of said members of the trolley-pole for adjusting the trolley vertically, and a spring connected with the rotatable carrier to hold the trolley laterally against the conductor, substantially as set forth.

8. The combination with a car, and a trolley adapted to bear laterally against a conductor, of a horizontally-vibratable carrier for the trolley, a coiled spring having one end fixed in position and its other end adapted to be adjusted laterally through a path concentric with the axis of the carrier, and means permanently connected with the movable end of the spring and adapted to detachably engage with and transmit the power of the spring to said carrier, substantially as set forth.

9. The combination of an electric car or locomotive, a trolley adapted to bear laterally against an electric conductor, a rotatable support for said trolley adapted to move about a vertical axis to reverse the trolley from a forward position. to a rearward position, a holder rigidly secured to the carframe and adapted to receive said trolleysupport, a coiled spring, a shaft or rod arranged at the axis of the rotatable trolleysupport, and permanent connections between said shaft and the spring whereby the trolley will be held against the conductor with a uniform pressure in both its forward position and its rearward position, substantially as set forth.

10. The combination of an electric car or locomotive, a trolley adapted to bear laterally against a conductor, a horizontally-rotatable carrier for the trolley adapted to be turned to reverse the trolley from a forward position to a rearward position, a coiled spring arranged within a chamber in the car, a holder or support on the car for the trolleycarrier, a shaft or rod supported in said holder and extending into the spring-chamber, means for connecting said shaft or rod with the trolley-carrier, and means connecting said shaft or rod with the spring whereby the trolley will be held against the conductor with a uniform pressure whether the latter is in its forward position or in its rearward position, substantially as set forth.

11. The combination of an electric car or locomotive, a trolley adapted to bear laterally against a conductor, a horizontally-vibratable base for said trolley, a holder permanently fixed on the car and having at its upper end a socket adapted to receive said vibratable base, a shaft rotatably mounted in said holder and engaging with said vibratable base, a spring connected with said shaft to hold the trolley against the conductor, and a stop, as at R, mounted on said shaft and adapted to limit the lateral movement of the trolley, substantially as set forth.

12. The combination of an electric car or locomotive, a trolley adapted to bear laterally against a conductor, a horizontally-vibratable base for said trolley, a tubular holder permanently fixed on the car, and adapted to receive and support said vibratable base, a shaft rotatably mounted in said holder, a spring having one end connected with a lug projecting laterally from said shaft and acting to hold the trolley against the conductor, and a stop R secured to said shaft and rojecting through a slot in the holder for imiting the lateral movement of the trolley, substantially as set forth.

13. The combination of an electric car or locomotive, a trolley adapted to bear laterally against a conductor, means for reversing said trolley from a forward position to a rearward position, a spring adapted to press the trolley laterally-against the conductor whether it be in its forward position or in its rearward position, and a supplemental spring for maintaining the trolley in the horizontal planes of the conductor, substantially as set forth.

14. The combination of an electric car or locomotive, a trolley adapted to bear laterally against an electric conductor, a sup ort for the trolley mounted on the car and l iaving an inclined pole, said support being rotatable to reverse the pole from a forward-inclined position to a rearward-inclined position, a spring arranged to hold the trolley laterally against the conductor both when it is in its forward position, and when it is in its rearward position, a supplemental spring for adjusting the trolley vertically, and a positive stop for limiting the downward movement of the trolley, substantially as set forth.

15. The combination with a car, of a current-conducting trolley arranged to bear against the side of the conductor, a pole or carrier for the trolley comprising a pair of parallel bars arranged side by side to constitute a two-part pole F, a carrier to which the lower parts of the pole are pivoted, arranged to turn in a horizontal plane, means which tend to move the pole horizontally toward the conductor, and pivotal connecting means between the upper ends of the two parts of the trolley pole or carrier and the trolley, substantially as set forth.

16. The combination with a car, of a current conducting trolley arranged to bear against the side of the conductor, a carrier for the trolley comprising a pair of parallel arms pivotally connected at their upper ends with the trolley, and a carrier for the trolleypole arranged to turn in a horizontal plane, and to. which the parts of the trolley-carrier are pivotally connected, the pivotal connections between the parts of the trolley ole or carrier and the trolley being parallel with the pivotal connections of the said carrier, and

clined pole or carrier for the same movable upward and downward means for maintaining the said trolley in the horizontal planes of the conductor and means for maintaining the horizontalposition of said trolley during such movement of the pole or carrier.

18. The combination with a car and an electrical conductor, of a current-conducting trolley adapted to bear against the side of the conductor an inclined two-part pole or carrier for the same, the two parts of which are severally connected with the trolley and with the car and are relatively movable, as said pole rises and falls to preserve the proper relation of the trolley to the conductor and means for maintaining the said trolley in the horizontal planes of said conductor.

19. The combination with a trolley adapted to bear against the side of a conductor, of a two-part pole or carrier, the two parts of which are severally connected with the trolley and with the car and are relatively movable, and means for maintaining the trolley in the horizontal planes of the conductor, substantially as and for the purposes set forth.

20. The combination of a trolley having an upwardly and downwardly extending axis and adapted to bear laterally against a conductor, a pole or carrier'for said trolley movable toward the conductor, means for maintaining the normal position of the trolley and its axls during the upward and downward movement of the carrier, and means for maintaining the said trolley in the horizontal planes of the conductor, substantially as set forth.

21. The combination of a trolley having an upwardly and downwardly extending axis, jointed supports for the trolley having a parallel movement adapted to maintain the normal position of the trolley and its axis during the elevation or depression of the trolley, means whereby said supports may turn to carry them to and from the conductor and means for maintaining the said'trolley' in the horizontal planes of the said conductor.

22. The combination with a trolley, of a carrier for the same having means for main taining the parallelism of the trolley with its planes of action on the conductor during the bodily movement of the trolley across such planes, and means for maintaining the trolley in the horizontal planes of the conductor.

23. The combination with a side-running trolley, of a carrier for the same, means for maintaining the horizontal parallelism of the trolley with its planes of action on the conductor during the bodily movement of the trolley across the said planes, and means tending constantly to maintain the contact between the trolley and the conductor, substantially as set forth.

24. The combination with a laterally-acting trolley, of a carrier for the same comprising devices having a parallel movement for maintaining the horizontal position of the trolley, a spring for holding the trolley laterally against said conductor, and a spring for maintaining said trolley in the horizontal planes of said conductor.

25. The combination with an electrical conductor and an electrical contact device adapted to engage therewith, of an inclined carrier for said contact device having means for maintaining it in horizontal parallelism with its planes of action on said conductor during the bodily movement of the said contact device crosswise of such planes, a support for said carrier on which it is adapted to swing from a rearward to a forward position, and means for maintaining the said contact device in the horizontal planes of the said conductor.

26. The combination with a car and an electrical conductor, of a trolley or currenttransmitter adapted to engage With said conductor, a support or bearing for said trolley arranged at one side thereof and a carrier for said bearing or support having a parallel movement for maintaining the said trolley in normal position, and means tending con-- stantly to move said trolley into contact with said conductor.

27. The combination of a car, a trolley or current-transmitter, a support or bearing for the latter arranged at one side thereof, a trolley-support vibratable relative to the car and also relative to the said bearing to maintain the normal position of the trolley, and meanstending constantly to move said trolley into contact with a conductor.

28. The combination with a car, of a current-conducting trolley adapted to bear against the side of the conductor, a pole or carrier for the same, means tending constantly to move the pole horizontally toward the conductor, and means tending to maintain the pole normally at an inclination to the car, substantially as set forth.

29. The combination of a contact device having an upwardly and downwardly extending axis and adapted to bear laterally against a line conductor, a pole or carrier for said trolley adapted to move laterally relative to the conductor, and movable vertically on an axis transverse to the planes of engagement of said contact device with a conductor, and means tending normally to press said contact device upwardly, substantially as set forth.

30. The combination with a car and an electrical conductor, of a standard extending upwardly from said car and adapted to vibrate about both a horizontal and a vertical axis, an electrical contact device carried by said standard and adapted to engage with said conductor, a spring associated with said standard and adapted to govern its vibration in horizontal planes so as to accommodate said contact device to the lateral irregularities in said conductor, and a spring associated with said standard for controlling the vibration in vertical planes so as to accommodate said contact device to the vertical irregularities in said conductor.

31. The combination with a car of a currentconducting trolley adapted to bear against the side of a conductor, an inclined pole or carrier for the same mounted on the car to swing both vertically and horizontally, means tending constantly to move said pole horizontally toward the conductor, and means tending to control the vertical move ments of said pole to maintain the trolley in the horizontal planes of the said conductor.

In testimony whereof I aifix my signature in presence of two witnesses.

ALEXANDER PALMROS.

Witnesses:

F. E. CoLroN, A. D. SHAW. 

